Table 53. Integrated Devices details(continued)
Option Description
improve performance on workloads where throughput and latency are critical.
The options available are 256 Cycles, 512 Cycles, 1K Cycles, 2K Cycles,
4K Cycles, 8K Cycles, 16K Cycles, 32K Cycles, 64K Cycles and 128K
Cycles.This option is set to 2K Cycles by default.
Current State of Embedded Video
Controller
Displays the current state of the embedded video controller. The Current
State of Embedded Video Controller option is a read-only field. If the
Embedded Video Controller is the only display capability in the system (that
is, no add-in graphics card is installed), then the Embedded Video Controller
is automatically used as the primary display even if the
Embedded Video
Controller setting is set to Disabled.
SR-IOV Global Enable Enables or disables the BIOS configuration of Single Root I/O Virtualization
(SR-IOV) devices. This option is set to Disabled by default.
OS Watchdog Timer If your system stops responding, this watchdog timer aids in the recovery
of your operating system. When this option is set to Enabled, the operating
system initializes the timer. When this option is set to Disabled (the default),
the timer does not have any effect on the system.
Empty Slot Unhide Enables or disables the root ports of all the empty slots that are accessible to
the BIOS and operating system. This option is set to Disabled by default.
IIO PCIe Data Link Feature Exchange This field allows globally disabling PCIe Data Link Feature Exchange. This may
be needed to support certain legacy hardware. This option is set to Enabled by
default.
Slot Disablement Enables or boot driver disables the available PCIe slots on your system. The
slot disablement feature controls the configuration of the PCIe cards installed
in the specified slot. Slots must be disabled only when the installed peripheral
card prevents booting into the operating system or causes delays in system
startup.
When this option is set to boot driver disabled, both the Option ROM
and UEFI driver from the slot will not run during POST. The system will not
boot from the card and its pre-boot services will not be available. However, the
card is available to the operating system.
Slot n: Enables or only the boot driver is disabled for the PCIe slot n. This
option is set to Enabled by default.
Slot Bifurcation Auto Discovery Bifurcation Settings allows Platform Default Bifurcation,
Auto Discovery of Bifurcation, and Manual bifurcation Control.
This option is set to Platform Default Bifurcation by default. The slot
bifurcation field is accessible when set to Manual bifurcation Control and
is grayed out when set to Platform Default Bifurcation and Auto Discovery
of Bifurcation.
NOTE: The slot bifurcation supports on PCIe slot only, does not support
slot type from Paddle card to Riser and Slimline connector to Riser.
Serial Communication
To view the Serial Communication screen, power on the system, press F2, and click System Setup Main Menu > System
BIOS > Serial Communication.
NOTE:
The PowerEdge XE9680 system does not support serial port connectivity. The Serial Communication option is
applicable only if the serial COM port is installed in the system.
Table 54. Serial Communication details
Option Description
Serial Communication Enables the serial communication options. Selects serial communication
devices (Serial Device 1 and Serial Device 2) in BIOS. BIOS console redirection
can also be enabled, and the port address can be specified.
52 Pre-operating system management applications
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